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2KD WEIGH MASTER
ACTUAL BOULDER TESTING RESULTS
All components utilized in the test are standard, off the shelf production items of Exactrix Global Systems.
Precision and selected orifices with less than 1% port to port variance are avai;able from Exactrix.
Injection orifices should be checked every 500,00 gallons of NH3 applied.
Testing reflects dual stage manifold operation in the secondary stage.
TESTED DELIVERY SYSTEMS.
Coefficient of Variation
PAMI rates any delivery system above 15% CV as unacceptable.
Testing information and criteria is also available from TVA and ASAE.
Test information can be presented as Average Difference of the Mean or Coefficient of Variation.
ASAE and PAMI have adapted CV. Iowa State/SF have adopted ADM
Testing results, Feb. 1 thru 4, 00, Boulder, Colorado, Micro Motion, Mid
Tech, Exactrix Global Systems.
2KD Series, Micro Motion R-100, Midtech TASC 6100, Exactrix Tool Bar Manifold.
Corken ZH2000 sliding vane pump transfers flow to the Micro Motion Elite mass flow meter acting as the master flow meter with .1% accuracy. The Micro Motion R-100 mass flow meter measures within .5% accuracy. The R-100 weighs the material flow and signals the Mid Tech 6100 TASC controller the dynamic weight of the material. The electronic governor or controller then regulates the speed of the Corken sliding vane pump correlating ground speed, per acre rate, and lbs. of flow in time.
The Mid Tech controller displays rate in lbs. /acre and calls for four variable rate changes over an eight minute period to determine response and repeatability.
Response time to the variable rate change is observed. Weights are compared between the master flow meter and the R-100. Response time is instant to .25 seconds based on pressure gauges.
Phase two of the tests measure the flow rate from 24 ports into 24 buckets which are electronically weighed. Four different per acre application rates were observed. Accuracy or coefficient of Variation is less than 1% port to port. The Average Standard Deviation is .191.
Repeatability is .1% using four different lb./acre rates.
CORIOLIS EFFECT FLOWMETER
MICRO MOTION of Boulder, CO. is the pioneer developer of Coriolis Effect flowmeters